Abstract:
Gridded Population of the World, Version 3 (GPWv3) Centroids consists of estimates of human population counts and densities for the years 1990, 1995, 2000, 2005, 2010, and 2015 by administrative unit centroid location. The centroids are based on the 399,781 input administrative units used in GPWv3. In addition to population counts and variables, the centroids have associated administrative unit ... names and the land area of contained within the administrative unit. GPWv3 is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with Centro Internacional de Agricultura Tropical (CIAT).

The data in Comma Separated Version (CSV) and ESRI Shapefile (SHP) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC).

Purpose:
To provide a vector (point) version of the input administrative units used in GPWv3 for use in data integration.

Use Constraints
The Trustees of Columbia University in the City of New York and the Centro Internacional de Agricultura Tropical (CIAT) hold the copyright of this dataset. Users are prohibited from any commercial, non-free resale, or redistribution without explicit written permission from CIESIN and CIAT. Users should acknowledge CIESIN and CIAT as the source used in the creation of any reports, publications, new datasets, derived products, or services resulting from the use of this dataset. CIESIN and CIAT also request reprints of any publications and notification of any redistributing efforts.